This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Houghton GC Eu Introductio in analysin infinitorum. en Page from Introductio in analysin infinitorum by Leonhard Euler lib harvard edu GC Eu Houghton Library Harvard University lib harvard edu GC Eu Houghton Library Harvard University Uploaded with books Leonhard Euler Media in the Houghton Library Harvard University